/*
 * [The "BSD license"]
 *  Copyright (c) 2013 Terence Parr
 *  Copyright (c) 2013 Sam Harwell
 *  All rights reserved.
 *
 *  Redistribution and use in source and binary forms, with or without
 *  modification, are permitted provided that the following conditions
 *  are met:
 *
 *  1. Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *  2. Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in the
 *     documentation and/or other materials provided with the distribution.
 *  3. The name of the author may not be used to endorse or promote products
 *     derived from this software without specific prior written permission.
 *
 *  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 *  IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 *  OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 *  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 *  INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 *  NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 *  DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 *  THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 *  (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 *  THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#if !PORTABLE

using Antlr4.Runtime;
using Antlr4.Runtime.Sharpen;

namespace Antlr4.Runtime
{
    /// <author>Sam Harwell</author>
    public class ConsoleErrorListener<Symbol> : IAntlrErrorListener<Symbol>
    {
        /// <summary>
        /// Provides a default instance of
        /// <see cref="ConsoleErrorListener{Symbol}"/>
        /// .
        /// </summary>
        public static readonly ConsoleErrorListener<Symbol> Instance = new ConsoleErrorListener<Symbol>();

        /// <summary>
        /// <inheritDoc/>
        /// <p>
        /// This implementation prints messages to
        /// <see cref="System.Console.Error"/>
        /// containing the
        /// values of
        /// <paramref name="line"/>
        /// ,
        /// <paramref name="charPositionInLine"/>
        /// , and
        /// <paramref name="msg"/>
        /// using
        /// the following format.</p>
        /// <pre>
        /// line <em>line</em>:<em>charPositionInLine</em> <em>msg</em>
        /// </pre>
        /// </summary>
        public virtual void SyntaxError(IRecognizer recognizer, Symbol offendingSymbol, int line, int charPositionInLine, string msg, RecognitionException e)
        {
            System.Console.Error.WriteLine("line " + line + ":" + charPositionInLine + " " + msg);
        }
    }
}

#endif
